Lumen is the first device and app available to anyone that provides real-time feedback on whether you’re burning carbohydrates or fats. These measurements are usually only made for athletes or patients through special testing centers, hospitals, or clinics, but with Lumen they are now available to everyone, anywhere.

Nutrition is a very individualized topic, while metabolism is just as nuanced – one size does not fit all when it comes to diet and nutrition plans – and that’s why dieticians and nutrition coaches can play an important role in health and well-being. However, a personalized diet comes with a need for experimentation because fine-tuning is often necessary. Every body processes foods and nutrients just a bit differently, and this is where a device like Lumen can really aid in that individualized understanding of one’s metabolism.

We got a chance to try out the Lumen ourselves, which is a very sleek and compact device. It comes in a nicely designed box with everything you need to get started – with a charging base, cord, and booklet. Its exterior has a matte finish that makes it soft to the touch, and its cap attaches via magnets, which makes removing and putting the cap on and off enjoyable.

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